Lg Display Co., Ltd.

Kyocera Corporation

Taro Hasumi

Shinji Takasugi

JiNo Lee

SangMoo Song

Keigo Kanoh

Dohyung Kim

JungChul Kim

SeHwan Na

Yoshinao Kobayashi

Ryosuke Tani

Jungchul Kim

Jiyun Kim

Sehwan Na

Jongkyung Kim

Yoshiki Nakamura

Naoyuki Nakanishi

Kaoru Kusafuka

Shinichi Abe

Mitsuo Morooka

YongMin Ha

JaeHee Park

Hiromi Fukuoka

Motohiko Asano

Kwangjoon Kim

Daisuke Ota

Hiromutsu Ogawa

Masaya Watanabe

Woojoon Kim

A light emitting display device and a driving method thereof are provided, in which a luminance difference occurring in a boundary between a fingerprint scanning area and a non-fingerprint scanning area is not perceived by a user. The light emitting display device can include a display panel including a display area where a plurality of pixels is provided to display an image. The display area can include a first area, a second area, and a boundary area disposed between the first area and the second area. In a case where the display panel displays a predetermined image pattern, each of pixels in the first area can emit a first light having a first luminance, each of pixels in the second area can emit a second light having a second luminance lower than the first luminance or cannot emit any light, and the luminance of pixels in the boundary area can be progressively reduced from the first area to the second area.

Electroluminescence display device and driving method thereof

A flexible organic electroluminescent device and a method for fabricating the same includes a substrate defined with a display area including a plurality of pixel regions and a non-display area at the outside thereof; a switching thin film transistor and a drive thin film transistor formed at the each pixel region on the substrate; an organic insulating layer deposited on the substrate including the switching thin film transistor and drive thin film transistor to expose a drain electrode of the drive thin film transistor; a first electrode formed in each pixel region on the inorganic insulating layer, and connected to the drain electrode of the drive thin film transistor; banks formed around each pixel region on the substrate including the first electrode and separated from one another; an organic light emitting layer separately formed for each pixel region on the first electrode; a second electrode formed on an entire surface of the display area on the organic light emitting layer; and an organic layer formed on an entire surface of the substrate including the second electrode.

Flexible organic electroluminescent device and method for fabricating the same

An image display device including a light-emitting element configured to emit light corresponding to a current flowing therethrough; a driving element that is connected to the light-emitting element and configured to control light emission of the light-emitting element; and a control unit configured to apply a reverse bias voltage to a first n-type driving element whose the threshold voltage determined at a specific time is equal to or higher than a positive predetermined voltage level for shifting the threshold voltage of the first n-type driving element in a negative direction, and not apply the reverse bias voltage to a second n-type driving element whose the threshold voltage determined at the specific time is lower than the positive predetermined voltage level for shifting the threshold voltage of the second n-type driving element in a positive direction when the light-emitting element does not emit light.

Image display device and driving method of the same

A method of compensating for changes in characteristics of a panel of a display device is disclosed. The panel includes subpixels, each of the subpixels including an organic light emitting diode. The method comprises: counting, by the display device, at least one on-time of at least one subpixel of the subpixels, the at least one on-time indicating a number of occurrences of light emitted by the at least one subpixel; transmitting, by the display device, the at least one on-time to a remote compensation server through a network; determining, by the remote compensation server, an organic light emitting diode compensation factor based on the at least one on-time; transmitting, by the remote compensation server, the organic light emitting diode compensation factor to the display device through the network; and driving, by the display device, the panel based on the organic light emitting diode compensation factor.

Remote compensation service method, remote compensation service system, OLED display device, and remote compensation server

An organic light emitting display device and a fabricating method thereof are disclosed, in which an organic light emitting diode or a cathode electrode may be prevented from being damaged by outgassing generated due to water remaining in a planarization film. The organic light emitting display device includes a substrate; a thin film transistor layer provided on the lower substrate; a planarization film provided on the thin film transistor layer to planarize the thin film transistor layer; an anode line provided on the planarization film to partially expose the planarization film in a non-display area corresponding to a periphery area of a display area; and a water absorption organic film provided on the exposed portion of the planarization film to at least partially absorb outgassing from the planarization film.

Organic light emitting display device and fabricating method thereof

Disclosed are an organic light emitting diode device, and a method for fabricating the same. The organic light emitting diode device comprises a non-active area formed outside an active area of a substrate; a switching thin film transistor and a driving thin film transistor at each of the pixel regions; a planarization layer on the substrate; a first electrode on the planarization layer; a bank formed in the non-active area outside each pixel region; an organic light emitting layer on the first electrode; a second electrode on an entire surface of the substrate; a first passivation layer on the substrate; an organic layer on the first passivation layer; a second passivation layer on the organic layer and the first passivation layer; a barrier film disposed to face the substrate.

Organic light emitting diode device and method for fabricating the same

A display device and method of forming a display device are provided. A display device includes: a first auxiliary electrode coupled to a first power voltage supply line; a second auxiliary electrode coupled to a second power voltage supply line with a first link electrode; an active area, comprising: scan lines; data lines; first voltage lines; second voltage lines; and pixels; and a display drive circuit configured to supply data voltages to data links coupled to the data lines, wherein the first auxiliary electrode, the second auxiliary electrode, the first power voltage supply line, the second power voltage supply line, the data links, and the display drive circuit being in a bezel area corresponding to an area outside the active area, the second auxiliary electrode being between the first auxiliary electrode and the active area, the first auxiliary electrode being between the second auxiliary electrode and the display drive circuit.

Display device and method of forming a display device

Provided is a flexible organic electroluminescent device and a method for fabricating the same. The device includes a switching thin film transistor and a drive thin film transistor formed at an each pixel region on the substrate; an interlayer insulating layer formed on the substrate; a partition wall pattern formed in the non-display area of the substrate; a first electrode formed on the interlayer insulating layer; a bank formed around each pixel region; an organic light emitting layer separately formed on the first electrode; a second electrode formed on an entire surface of the display area; a first passivation layer formed on an entire surface of the substrate; an organic layer and a second passivation layer formed on the first passivation layer of the display area; a barrier film located to face the substrate.

An image display apparatus includes a light emitting unit that emits light by current flowing through the light emitting unit; and a driver unit that includes a first terminal and a second terminal. The driver unit has a characteristic that an absolute value of a current flowing through the second terminal increases with a potential of the first terminal to the second terminal, and controls light emission of the light emitting unit based on a potential difference between the first terminal and the second terminal. The image display apparatus also includes a control unit that controls the potential of the first terminal to the second terminal of the driver unit to a value lower than a threshold voltage of the driver unit.

Image display apparatus and driving method thereof

A pixel circuit has a light emitting element and a driver electrically connected to the light emitting element. A reverse bias voltage is applied to the driver to reduce a shift amount of a threshold voltage of the driver.

Pixel circuit, image display apparatus, driving method therefor and driving method of electronic device

A voltage compensation type pixel circuit of an AMOLED display device includes a driving transistor serially connected to a light emitting element between high-potential and low-potential power lines to drive the light emitting element in response to a voltage supplied to a first node, a first program transistor for supplying a data voltage of a data line to a second node in response to a scan signal of a scan line, a second program transistor for supplying a reference voltage from a reference voltage supply line to the first node in response to the scan signal of the scan line, a merge transistor for connecting the first and second nodes in response to a merge signal of a merge line, a storage capacitor connected between a third node and the second node interposed between the driving transistor and the light emitting element to store a voltage which corresponds to the data voltage in which the threshold voltage is compensated, and first and second reset transistors for initializing at least two of the first, second, and third nodes to an initialization voltage of an initialization voltage line in response to a reset signal of a reset line.

Voltage compensation type pixel circuit of active matrix organic light emitting diode display device

An image display device equalizes an amount of shift in Vof a driving element for each pixel. Provided are a light-emitting element (D) that emits light corresponding to current flowing therethrough; a driving element (Q) that is connected to the light-emitting element (D) and controls light emission of the light-emitting element (D); and a controller (U) that detects a threshold voltage of the driving element (D) and controls an applied voltage to the driving element (D) based on the detected threshold voltage. The controller (U) applies voltages for a reverse or forward bias to the driving element (D) based on a comparison result between the threshold voltage and a predetermined threshold when the light-emitting element (D) does not emit light.

A sealing layer covers more surely both of a display region and a peripheral region on a substrate. A dummy structure is formed in the peripheral region of the substrate. The dummy structure contains, for instance, at least one of the materials constituting an organic EL display structure. The dummy structure is located in the peripheral region so that the volume per unit area of the sealing layer in the peripheral region is substantially the same as that in the display region.

Growing community of inventors

Seoul, South Korea

Taro Hasumi